Erasmus, Charles J., author
Bobbs-Merrill, 1961
Buku Teks
Chandrasekhar, S., author
Frederick A. Praeger, 1965
Buku Teks
Pleck, Elizabeth H., author
Prentice-Hall, 1980
Buku Teks
Montgomery, John D., author
Frederick A. Praeger, 1962
Buku Teks
Arnold, H.J.P., author
Dufour Editions, 1966
Buku Teks